Air compressor



FIG. 1 is a front and upper perspective view of an air compressor showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a right side elevational view thereof;

FIG. 8 is a rear and upper perspective view thereof; and,

FIG. 9 is a front and lower perspective view thereof.

The short dash long dash broken lines define the bounds of the claimed design and form no part thereof. 

CLAIM The ornamental design for an air compressor, as shown and described. 